Box



Patented J an.` 27, 1925.

UNITEDSTTES PATENT oFFlcE.

PAUL A. 1)1'.l\TS1VlO`0IIEt, 0F LAWRENCE, KANSAS, ASSIGNOR T0 THELAWRENCE PAPER MANUFACTURING COMPANY, F LAWRENCE, KANSAS, A PARTNERSHIP.

BOX.

Application led October 23,1922. Serial No. 596,268.`

To all whom 'Zt may concern:

Be it known that I, PAUL A. DINsMooR, a citizen of the United States.residing at Lawrence, in the county of Douglas and State of Kansas, haveinvented certain new and useful Improvements in Boxes; and I do declarethe following to be a full, clear, and exact description of theinvention such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this,

specification. This invention relates to boxes and particularly to fiberboxes used for transportation of canned goods although the invention isnot necessarily confined to boxes used for any particular purpose.

The weakest points on suchl boxes are where the board has been lweakenedbv scoring it to make the fiaps. Therefore, I have provided means forreinforcing the box at the flap connections orscoring. This is .acecomplished by pasting strips of reinforcing material on the insiderwallsof the box so that when the fiaps are folded into sealing position, thestrips will be concealed.

There are two very important advantages resulting from the applicationof the strips on the inside of the box. The first is that the materialof which the'strips are made is not put under tension. If the stripswere put on the outside of the box when the blanks are formed. just assoon as the flaps were folded over the reinforcing strips would be putunder tensiony andl there would be a tendency for either the strips topull away from the box or else to have their fibers weakened to thepoint of breaking. Second, if the strips are put on the outside of thebox, they are weakened by abrasion against other boxes. the floor andside walls of the freight car, during transportation the strips is avery important and handling, as well as being subjected to.

`in-connection with the accompanying drawings, in which-,-

Fig. 1 is a perspective view of a box constructed in accordance with myinvention, part being broken away to show the floor or bottom fiaps. 1

Fig. 2 is a fragmentary, sectional view through a portion of the box,showing how the strips are applied, and

Fig. 3` is a fragmentary view of a box showing a can supported upon thestrip.

The box can be formed from a blank of ordinary construction. The box inFig. 1 1s shown as consisting of the side walls 1 and 2, the end walls 3and 4, the side fiaps 5 and 6 and the end flaps 7 and 8. Fla scorresponding to 5, 6, 7 and 8 are on 't e bottom edges of the walls 1,2, 3 and 4. One en d wall is secured to a side wall in any suitablemanner but for convenience the fastening ris here shown as a pastedstrip 9 applied in the usual way. Obviously, however, any of the knownmethod of fastening;y may be substituted for the strip 9. The materialofwhich the box proper is constructed 1s preferably fiber board, which iscorrugated so as to make each liner form a cord or truss, the completedboard being in the nature of a truss. In laminated or solid fiber boardthe bending strength is almost entirely contained in the two outerplies, hence it is important that the inner ply of a solid fiber boardbe protected, this belng possible by the application of the inner strips10, 11, 12 and 13 applied to the solid fiber board box, the broad resultbeing the same as in the corrugated board.

If one of these cords is cut, the box is materially weakened so it is animportant feature of my invention that means is provided to prevent thesevering or breaking of the cords or corrugations of the box by thechines of the metal cans which are usually ship ed in them.

T e reinforcing strips maybe applied at the same time that the plies 1nsolid fiber or the corrugated sheet and the facing sheets in corrugatedboard are being pasted together; or after the box blanks have been cut,before they have been scored; or if comparatively thin reinforcingstrips are used,

.after the blank has been scored. The reinforcing stri s are indicatedat 10, 11, 12 and 13 for rein orcing the connections between the flaps5, 6, 7 and 8 and the walls 1, 2, 3 and 4. Corner reinforcements 14 maybe provided at the respective corners if desired, and when so added, inaddition to protecting the box liners against'cutting or breaking, thesestrips applied at the corners increase the tiering strength; that is,(tostrengthen the box against collapsing when Weight is piled on it. I haveshown side iaps and 6 and end flaps 7 and 8 at the top of the box, itbeing obvious that similar fiaps are at the bottom `of the box and lthatthese flaps are reinforced with correspondingstrips.

In Fig. 2 it will be assumed that the side wall 1 carries a side iap 5,the scoring 15 being reinforced by Athe'strip 10. When the strips areput on "the inside of the box, the scoring or groove formed at 15 willconform the strip to the box blank. Then as the flaps are bent over toclosing position, the bend at the longitudinal center of each strip willbe on a relatively short arc so thatthere will be no stretching orstressing of the fibers of which the strip is composed,

The bottom strip which according to Fig. 3 would correspond to the strip13,'is in Fig.

3 designated 13. lIts lateral portion resting ,on the bottom ofthe boxwill serve as a mator reinforcement for the chine 16 of the metal can 17so that it will receive the ressure of the chine and prevent the cor ofAthe box from becoming broken which would weaken the box. Of course,these lateral portions 18` extend all around the inner corners of thebox andv along the side Walls` cords cannot be cut or weakened and,therefore, the box will maintain its original strength. Also is itimportant that the stri s be on the inside of the box because when t ebox is pulled across the ioor or counter, the strips will not b e tornoi as they are protected by the box proper.'

It will, therefore, be seen that a. box con-v structed in accordancewith my invention can be easily made and reinforced in an efficientmanner.

What I claim and desire to secure by Letters-Patent is:

In a corrugated board box, Ia joint formed by first producing a narrowcompressed zone in a corrugated blank, then reinforcin said zone bypasting thereon a thin stri o ilexible material wider than the widt ofsaid zone. f.

In testimony whereof I affix my signature.

. PAUL A, DrNsMooR.

